Paper cop-tube



W. J. MQOAUSLAND.

Paper Gop-Tube.'

No. 227,281. Patented May 4,1880. 1 1

N-PETm PHOTO-UTNDGRAPNER. WASNNGTON. D4 C.

UNITED STATES PATENT OFFICE.

WILLIAM J. MCOAUSLAND, OF PHILADELPHIA, PENNSYLVANIA.

PAPER COP-TU BE.

SPECIFICATION forming part of Letters Patent No. 227,281, dated May 4, 1880,

Application filed September 20, 1879 To all whom it may concern Be it known that I, WILLIAM J. MGCAUS- LAND, of Philadelphia, Pennsylvania, have invented a new and useful Improvement in Paper Cop-Tubes, of which the following is a specification.

My invention consists of a paper cop-tube made smooth, hard, and rounding at the upper.

end or at both ends, as described hereinafter, so as to dispose of the ragged edges which frequently cut the threads and interfere with the proper spinning of the same.

' In the accompanying; drawings, Figure 1 represents a spindle with an ordinary cop-tube in section; Figs. 2 and 3, enlarged views of parts of Fig. 1 Fig. 4, a view of a spindle with my improved cop-tube in section; Figs. 5 and 6, views of parts of Fig. 4; and Fig. 7, aview of mechanism which may be used in carrying out my improvement.

In Figs. 1, 2, and 3, A is the ordinary spindle, and B the usual cop-tube, made of paper and adapted to the spindle, as shown. These tubes are made by rolling and pasting strips of paper, the upper and lower ends of the tubes being left in a ragged condition, which is objectionable, especially on the upper end of the tube, as the sharp and thin projecting edges of the paper frequently out the threads and otherwise interfere with the proper spinning of the same.

In order to overcome this defect, I push the upper end of an ordinary cop-tube against a rapidly-rotating die, D, of the shape shown in Fig. 7, this die having a circular recess, from which projects a central pin, a, into the tube. The effect of this rapidly-revolving die on the tube is to condense the paper and reduce the ragged end to the smooth rounded termination shown in Fig. 5, the rounded surface being hard and uniform, so that it cannot have any injurious effect on the thread in spinning. The die has also the effect of compressing the end of the tube inward to the extent de-' termined by the central projection, a, which is of such a diameter that the tube will fit on the end of the spindle in the manner shown in Fig. 5.

The internal turning of the end of the tube by the projection a has a tendency to insure the proper centering of the said tube on the spindle.

It is not essential that the lower end of the tube should be subjected to the above-described process; but I prefer to treat both ends in the same manner, the lower ragged end of the tube being pressed against the die D, Fig. 7, which results in solidifying, smoothing, rounding, and internally truin g this end of the tube.

I am aware that a paper cop-tube has been contracted at the tip, whereby afirm frictional contact of the top of the tube with the spindle isassured; but this was effected without such solidifying and compressing of the paper as to result in the hard polished end, which is the characteristic of my improved cop-tube.

I am also aware that a paper cop-tube has been bent inward at the lower end, so as to form an internal flange for bearin g against the spindle; but this also was accomplished without condensing, hardening, and smoothing the said lower end of the cop-tube.

WVithout claiming broadly, therefore, the formation of an internal flange at the ends of the tubes,

I claim as my invention and as a new manufacture A paper cop-tube condensed, hardened, polished, and rounded at one or both ends, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WM. J. MGGAUSLAND.

Witnesses:

ALEXANDER PATTERSON, HARRY SMITH. 

